Quadding apparatus



Feb. 20, 1951 l.. o. RHODES y QUADDING APPARATUS Filed May 14, 194s I INVENTOR. fara/7 67. IZ/50de@ ment toward each other Patented Feb; 20,k 1951 UNITED STATES PATENT orties QUADDING APPARATUS Loran O. Rhodes, Craig, Colo. Application May 14, 1948, Serial No. 27,015

2 Claims. 1

This invention relates to improvements in quadding apparatus for typographical machines,

the primary object of the invention being to provide simplified, less expensive apparatus of this kind.

Another important object of the invention is to provide quadding apparatus of the above indicated character which can be readily applied to typographical machines not already equipped with quadding apparatus.

Other important objects and advantageous features of the invention will be apparent from the following description and accompanying drawings, wherein, for present purposes of illustration only, a specific embodiment of the invention is set forth in detail.

In the drawings:

Figure 1 is a rear elevation showing the improved quadding apparatus associated with related components of a conventional typographical machine, and

Figure 2 is a transverse vertical section taken on the line 2-2 of Figure l.

Referring in detail to the drawings, the numeral generally designates the justification block of a conventional typographical machine, above and at opposite ends of which are positioned jaws E and l, respectively, supported by conventional means (not shown) for moveor rods S and 8', respectively, which abut the outer ends of the jaws in a conventional manner. In machines having automatic quadding apparatus, mechanical means connected to the shafts 8 and 8 and coordinated with the vertical movement of the justification block 5, are provided for operating the jaws 6 and l, which mechanical means are complicated, and expensive both to construct and to repair. In accordance with the present invention such mechanical means are eliminated, and their functions replaced by simple toggle link-ages I0, IIl. The jaw 'I is substantially shorter than the jaw 6, and is provided with an extension 1', lengthening the center portion thereof in order to block metal flow when the jaw I is fully extended toward its companion jaw 6, and makingthe jaw l in effect the same length as the jaw 6.

The similar linkages Il) each comprises a pair of equal length links Il, II pivoted together at their lower ends on a horizontal pin I2. The upper end of the inner link I I is pivoted at I4 to the lower end of a bracket arm I5 secured at its upper end, as indicated at I6, to the back of the related one of the jaws 6 and 1, at points near by locking shafts yto the right will result. Vlhen both rods I2, I2

2 the laterally inward ends of the jaws. The pins I2 can be moved longitudinally to bring their heads I3 into and out of position, as indicated in Figure 2, for engagement by the justification block 5 as itrises. Therefore, when rod or pin I2 controlling jaw I is pushed rearwardly by the operator, into the dotted line position shown in Figure 2, and the rod i2 associated with the jaw 6 is left in the full line position shown in Figure 2 so as not to be engaged by the block 5, the linkage Ill` of the jaw 'I will be elevated and jaw 'I will be moved inwardly when block 5 rises, and jaw 6 will remain stationary. This will produce a line flush to ther left. By reversing the positions of the two control rods I2, I2 a line ush are pushed in, a centered line is produced.

lWith reference to the jaw S the upper end of the laterally outward link II of its linkage Il) is pivoted at Il to the laterally inward end of a horizontal yarm I8 having a collar or abutment I9 on its laterally outward end, which is clamped on the rod or shaft 8 of the jaw 6. A helical spring 20 is stretched between the upper ends of the links II, II', the parts being so proportioned and arranged that in the depressed position of the justification block 5 the links II, II' are held by the spring 20 in acutely angul-ated relation with very little tension on the spring, whereas in the elevated position of the justification block 5 the links II, II' are spread away from eachother, and move the jaws 6, l' toward each other as shown in dotted lines in Figure y1. The spring 20 is thereby consider-ably stretched so that the spring 20 is tensioned suiiiciently to return the jaws 6, 'I to starting position when the justification block 5 returns to the depressed position, shown in full lines in Figure 1. With reference to the jaw 1, a horizontal rod I8 has on its outward end a collar or abutment I9' which is clamped on the rod 8' associated with the jaw 'I, the inward end of the rod I8 being pivoted at I'I' to the upper end of the outer link II of the associated linkage II).

With variations which will occur to persons skilled in the pertinent art, the above described arrangement of quadding apparatus can be installed and operated in machines not already equipped with quadding apparatus.

It is apparent from the foregoing that upon rise of the justification block 5 from its depressed, full line position in Figure l, to the dotted line position, the jaws B and I will be moved toward each other the required amount to clamp therebetween the line of matrices 2|, with or without spacebands.

What is claimed is:

1. In a typographical machine having a pair of jaws supported for horizontal movement toward each other to clamp a line of matrices therebetween and for horizontal movement away from each other to release such line of matrices and relatively stationary abutments at the outer ends of and limiting movement of said jaws away from each other, and a justification block below said jaws and adapted to be moved upwardly beneath said jaws fro-m a depressed position to prod uce justiiication of a line of matrices clamped between said jaws; the improvement .which comprises for each of said jaws a rod secured to the associated abutment and extending alongside of the jaw, a linkage comprising an outer vertical link pivoted to depend from the inward end of said rod, an inner vertical link pivoted to depend from the jaw, pivot means pivoting the lower ends of the outer and inner links together, said pivot means comprising a rod having a portion positioned in the path of movement of said juslrication block and arranged to be engaged and f elevated by the justification block as it rises whereby said inner and outer links are spread so as to move the associated jaw toward the other jaw, and spring means connected to said inner and outer links for contracting said inner and outer links toward each other as the justication block subsides toward the depressed position and thereby moving the associated jaw outwardly away from the other jaw and into engagement with the related abutment.

2. In a typographical machine having a pair of jaws supported for horizontal movement toward each other to clamp a line of matrices therebetween and for horizontal movement away from each other to release such line of matrices and relatively stationary abutments at the outer ends of and limiting movement of said jaws away from each other, and a justiiication block below @o Number Asaid jaws and adapted to be moved upwardly beneath said jaws from a depressed position to produce justification of aline of matrices clamped between said jaws; the improvement which comprises for each of said jaws a rod secured to the associated abutment and extending alongside of the jaw, a linkage comprising an outer vertical link pivoted to depend from the inward end of said rod, an inner vertical link pivoted to depend from the jaw, pivot means pivoting the lower ends of the outer and inner links together, said pivot means comprising a rod having a portion positioned in the path of movement of said justincation block and arranged to be engaged and elevated by the justification block as it ,rises whereby said inner and outer links are spread so as to move the associated jaw toward the other jaw, and spring means connected to said inner and outer links for contracting said inner and outer links toward each other as the justication block subsides toward its depressed position and thereby moving the associated jaw outwardly away from the other jaw and into engagement with the related abutment, the rod of each of said pivot :means being longitudinally adjustable to selectively retract the justication block engaging portion thereof to positions in which either of the rods fails to be operatively engaged by the justification block and the associated jaw remains stationary while the remaining jaw is moved inward and outwardly as the justification -block rises and subsides.

LORAN O. RHODES.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Name Date Albrecht Aug. 25, 1936 Hayward et a1 Nov. 30, 1937 Sokrabei Jan. 3, 1939 

